Influence of Paper Type and Liquid Insulation on Heat Transfer in Transformers

被引：13

作者：

Dombek, Grzegorz ^{[1
]}

Nadolny, Zbigniew ^{[1
]}

机构：

[1] Poznan Univ Tech, Inst Elect Power Engn, Piotrowo 3a, PL-60965 Poznan, Poland

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2018年 / 25卷 / 05期

关键词：

power transformers; paper insulation; dielectric liquids; thermal properties; HIGH-VOLTAGE TRANSFORMERS; THERMAL-CONDUCTIVITY; SERVICE TEMPERATURES; POWER TRANSFORMERS; FURANIC COMPOUNDS; AGING RATE; PART; OIL; MOISTURE; CELLULOSE;

D O I：

10.1109/TDEI.2018.007227

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The paper presents the results of investigations on the thermal properties of cellulose and aramid paper impregnated with various liquid insulations. The liquid insulations investigated were mineral oil, synthetic ester, and natural ester. The heat transfer coefficient of the liquid was calculated on the basis of measurements of the thermal expansion, specific heat, density, thermal conductivity and kinematic viscosity of the liquid insulations. Temperatures in the paper and liquid insulations were calculated. The results allow to select the best paper and liquid insulations which provide the most effective cooling in transformers.

引用

页码：1863 / 1870

页数：8

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